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X-rays

What leaves your PC, measured.

An x-ray is a real test: we open an AI, a browser or a website on a clean machine, and GUARDIANA writes down who it talks to. Each one with its date, its method and its data to download.

ExampleUSA Today, 20 seconds
372names the machine asked for on opening the front page
214advertising, tracking or telemetry4USA Today’s own154other names
17 September 2026 · freshly installed Chrome · see the x-ray

The headline results

AI15 / 0outside services: Grok against Claude and Meta AI, same questionBrowsers188 / 7advertising and tracking names: Chrome against DuckDuckGoWebsites372names in 20 s on opening USA Today; 214 advertising, tracking or telemetry

All x-rays

13 tests, 14 to 20 September 2026

15 / 0AI20 Sep 2026Eight AIs with your account, chattingoutside services: Grok against Claude and Meta AI, same question1 of 7AI20 Sep 2026Seven AIs and a bait fileAI went to fetch the link hidden in the file: Grok, 9 visits3AI19 Sep 2026An AI sorting five invoicesservices in 10.7 s with Claude Code; one is Datadog, which the task did not need3 = 3AI20 Sep 2026The same task, the next daythe same three services, name by name: the measurement repeats0AI19 Sep 2026The same task, with an AI inside the PCinternet services with a local model (qwen2.5); it did get the answer wrong6 / 0AI18 Sep 2026Eight AIs with your account, 18 Septemberadvertising and tracking services: Gemini against ChatGPT6AI20 Sep 2026Eight AIs searching the webGemini advertising services, the same on opening as on searching4–9AI17 Sep 2026Eight AIs on a clean PCoutside services on opening each AI, no account, nothing typed188 / 7Browsers14 Sep 2026Five browsers, four websitesadvertising and tracking names: Chrome against DuckDuckGo151 / 211Browsers14 Sep 2026Brave against Chromeadvertising and tracking names in two minutes across four websites372Websites17 Sep 2026Six US newspapersnames in 20 s on opening USA Today; 214 advertising, tracking or telemetry146Websites17 Sep 2026Amazon, eBay, ESPN, Yahoo and moreadvertising, tracking or telemetry names on Yahoo’s front page189Websites14 Sep 2026Six Colombian newspapersadvertising, tracking or telemetry names on El Tiempo’s front pageYour own x-rayWith GUARDIANA you see the same on your computer, with your programs and your websites. Download GUARDIANA
How it is measured, and house rules

House rules

  • Only measured facts, with the date and the version.
  • Always against something. With browsers, five at a time, and at least one of them sold as private (Brave, DuckDuckGo or similar); the first x-ray, on 14 September, compared two, and says so.
  • What the maker does well, and what you can switch off yourself, is said too.
  • The full data to download, and the method to repeat it.
  • Never “spy” and never “malicious”: GUARDIANA sees names, not what travels inside.

How these are made

The machine's DNS points at GUARDIANA, which writes down every name it is asked to resolve, with the time and the device. Each page or application is opened alone, in its own time window, so the names can be attributed. The complete list of names goes out as a CSV next to each x-ray, and the tools are in the program's repository. If you are the maker of something measured here and a figure is wrong, write to hola@guardianagroup.com and it is corrected with the date.

Agent receipt

The same idea, applied to an AI that works for you: what services the machine looks up while it does a task. The protocol was published before the first figure, on purpose: the method is fixed first and measured afterwards. The first receipts are from 19 September 2026 and are below, in the list; each one carries the same comparison table, with the AIs that could be measured and the ones that could not, and why.